Ladle-dauber.



No. 893,424. PATENTED JULY 14, 1908. U. BARTHOLOMAI, W. G. STOCKHAM 82: G. R. DEMING.

L'ADLE DAUBER.

APPLICATION FILED MAY 3, 1901 2 SHEETS-SHEET l,

5 vwentoz$ PATENTED JULY 14, 1908.

G. BARTHOLOMAI, W. G. STOGKHAM & G. R. DEMING.

1 91 in cases LADLE DAUBER. APPLIUATION'FILED MAY 3, 1907.

2 SHEETS-SHEET 2.

ii 13 6. Barf/Z0 Z0 7760CC attonwgo uventoz UNITED STATES PATENT OFFICE.

CHARLES BARTHOLOMAI, WILLIAM G. STOOKHAM, AND GEORGE E. DEMING, OF PIQUA, OHIO.

LADLE-DAUBER.

Specification of Letters Patent.

Patented July 14;, 1908.

To all whom it may concern."

Be it known that we, CHARLES BARTHoLo- MAI, WILLIAM G. STOGKHAM, and GEORGE R. DEMING, citizens of the United States, residing at Piqua, in the county of Miami and State of Ohio, have invented certain new and useful Improvements in Ladle-Daubers, of which the following is a specification.

Ladles for holding molten metal in foundries are protected by being lined on the inside with clay or kindred refractory material. This lining has heretofore so far as known been applied by hand, and in consequence thereof, considerable time is required to apply the lining and when finished, the lining is not always of a uniform thickness and smooth surface.

The present invention is designed to provide a machine for applying the plastic lining to ladl'es whereby the work may be performed in a comparatively short time, and whereby the lining is practically of a uniform thickpess throughout and presents a smooth surace.

For a full description of the invention and the merits thereof and also to acquire a knowledge of the details of construction and the means for effecting the result, reference is to be had to the following description and accompanying drawings.

While the invention may be adapted to different forms and conditions by changes in the structure and minor details without departing from the spirit or essential features thereof, still the preferred embodiment is shown in the accompanying drawings, in which:

Figure 1 is a side view of a machine embodying the invention. Fig. 2 is a top plan view of the machine. Fig. 3 is a horizontal section on the line w0c of Fig. 1. -Fig. 4 is a horizontal section on the line y of Fig.

. 1. Fig. 5 is a horizontal section on the line zz of Fig. 1. Fig. 6 is a vertical section on the line w-w of Fig. 5. Fig. 7 is a front view of the clamp. Fig. 8 is a sectional view of the clamp on the line o'v of Fig. 5. Fig. 9 is a detail view of a portion of the standard provided with the bearing arms for the shaft showing the relation of the parts when the plunger is lowered.

Corresponding and like parts are referred to in the following description and indicated in all the views of the drawings by the same reference characters.

The machine comprises a standard 1 having a foot or piece 2, said standard being preferably flanged for the sake of lightness and strength and provided at its upper end with pillow blocks in which is journaled a shaft 3 which is provided with a tight and a loose pulley and with a gear wheel 4 in mesh with a gear wheel 5 mounted vertically in a bearing at the outer end of'a horizontal armfi projected from the standard 1. A second arm 7 projects horizontally from the standard 1 a short distance below the arm 6 and is provided at its outer end with a bearing in vertical alinement with the bearing at the outer end of the arm 6 and in which bearing a vertical shaft 8 is mounted. The shaft 8 has a feather and spline connnection with the gear wheel 5 so as to rotate therewith, which at the same time admits of the shaft 8 having a vertical movement. A lunger 9 is provided at the lower end of the shaft 8 and is of a size slightly smaller than the ladle to be lined. The shaft 8 is limited in its downward movement bymeans of a stop 10 fitted thereto and consisting of a collar secured to the shaft by a set screw whereby the downward movement of the shaft may be regulated according to the special work. The plunger 9 conforms approximately to the inner space of the ladle and the outer surface of the plunger and the inner surface of the ladle are such that when the ladle is in position and the plunger lowered to the limit of its downward movement, a uniform space is provided between the two surfaces with the result that the lining which fills this space is of uniform thickness throughout. A bracket 11 projects horizontally from the standard 1 and supports the ladle 12,'the top side of the bracket being level and having a depression to form a seat in which the ladle 12 1s fitted.

The ladle when in position is secured by means of a holder which is com osed of complemental parts which are a apted to be opened and shut to provide convenient means for placing the ladle in position and removing it from the holder. The ladle holder is of annular form and comprises the parts or sections 13 and 14 which are hinged or pivoted at 15. Lugs 16 and 17 project outwardly from the free ends of the sections 13 and 14 and are held together when the holder is closed bymeans of a clamp. The ladle holder is arranged a short distance above the bracket 11 and is su ported by means of a lug 18 and a post 19 t e lug projecting horizontally from the standard 1 and the post 19 extending upward from the outer portion of the bracket 11. The section 13 is provided near its outer end with a slot 20 which receives the upper portion of the post 19, said slot being 0 a length to admit of adjusting the section or part 13 so as to engage with the ladle when the same is centered with reference to the plun er. The section or part 13 after being a justed is fixed. For this purpose, set nuts 21 are mounted upon the ujoper threaded portion of the 0st 19, one be ow the other above the section 13 so as to clamp the latter firmly at its outer end. The section or part 14 is free to swing 0 en and shut to admit of placing the ladle in position or removing it when required. A rim 22 projects vertically from the outer edge of the holder and catches any of the clay or material that may drop from the ladle during the process of lining or daubing. The horizonta portion of the holder is comparatively broad to provide a trough exterior to the ladle for catching surplus material dropping therefrom so as to prevent the same falling upon the floor orother surface upon which the machine may be placed.

The clamp cooperating with the lugs 16 and 17 has a pivotal and adjustable connection with one of said lugs and detachable connection with the other lug. The clamp is of the general form of a shackle and is pro- [p vided at one end with a set screw 23 and at its opposite end with a cam lever 24, the set screw being connected'at its inner end with the lug 17 by a swivel joint and the cam lever 24 adapted to engage the other lug 16 to U draw the sections or parts 13 and 14 of the ladle holder together.

The body of the clamp comprises two bars or plates 25 which are spaced apart to embrace opposite sides of the lugs 16 and 17 and to receive between them the cam lever 24 and the set screw 23,

the latter being mounted in a nut 26 having opposite threaded trunnions 27 which pass through openings in one end of the bars or plates 25 and receive nuts 28. The cam lever 24 is likewise provided at opposite sides with threaded trunnions which pass through openings in one end of the bars or plates and receive nuts 29. The set screw 23 by means of its swivel connection with the lug 17 may be rotated to adjust the nut 26 at a greater or less distance from the lug 17, thereby varying the position of the clamp with reference to the lugs 16 and 17 whereby the cam lever 24 may be adjusted to cause the sec tions 13 and 14 of the ladle holder to grip said ladle with any desired pressure to prevent its rotation with the plunger when distributing and applying the lining material thereto.

The plunger is counterbalanced, thereby enabling the same to be easily and conveniently manipulated. The counterbalance consists of a weight 30 which is attached to one end of a chain or analogous connection 31, the same passing over direction pulleys 32 and having connection at its opposite end with the shaft 8 or the means cooperating with said shaft to have vertical adjustment thereof.

While any means may be employed for moving the plunger up and down, the instrumentalities illustrated have been employed, the same consisting of a lever 33, yoke 34 and bracket 35, the latter having connection with the standard and the arm 7. The yoke or collar 34 is connected with the shaft 8 by swivel joint so as not to interfere with the free rotation thereof while at the same time admitting of said shaft being moved vertically when manipulating the lever 33 by moving its outer end up or down. The ladle to be lined is placed upon the bracket 11 and supported thereby and is prevented from displacement by the holder in the manner hereinbefore stated. The

clay or other material for lining the ladle is placed therein after which the plunger 9 is lowered into the ladle and is supported by the lever 33 and moved downward thereby. Upon shifting the drive belt, not shown, from the loose pulley, or to the tight pulley, the shaft 3 is rotated and motion is transmitted therefrom through the gear wheels 4 and 5 and the feather and spline connection between the shaft 8 and the gear wheel 5 to said shaft 8 whereby the plunger is driven. As the clay or material is distributed, the lever 33 is moved to lower the plunger until it is limited by the stop 10 coming in contact with the gear wheel 5 after which a forward movement of the outer end of the lever 33 elevates the plunger when the drive belt may be shifted from the tight to the loose pulley, or the machine brought to a standstill in any manner. Surplus clay dropping from the top of the ladle is caught by the trough portion of the ladle holder in the manner herein stated. For striking the lining, t. 6., to remove the surplus material when the plunger has been forced to its lowest limit to give a finished appearance to the lining, a lug 36 projects laterally from the upper portion of the plunger and sweeps over the upper edge of the ladle.

The lever 33 is forked at its inner end and embraces opposite sides of the yoke 34 with which it has running connection. The yoke 34 is preferably formed of two parts which are secured together by machine screws or other suitable fastenings as indicated most clearly in Fig. 3. Lugs 37 project from opposite sides of the yoke and enter ways or grooves 38 in the inner sides of the fork members of the lever 33. Studs 39 extend inward from the end portions of the fork members of the lever 33 and engage flanges 40 at opposite sides of the bracket 35 and are adapted to enter seats 41, 42 or 43. The

seats 41 are located near the up er end of the bracket and the seats 42 an '43 are vertically spaced and located at the lower end of said bracket. I/Vhen the studs 39 are fitted in the seats 41 and the outer end of the lever 33 thrown upward, the shaft and plunger are raised as indicated most clearly in Fig. 1. When the studs 39 are fitted in the seats 42 and the outer end of the lever 33 is moved downward as indicated in Fig. 9, the plunger is forced into the ladle and a maximum leverage is provided. For raising the plunger from the ladle after the same has been lined, the studs 39 are permitted to enter the seats 43 and the outer end of the lever 33 is elevated. After the plunger has been disengaged from the ladle, it may be easily elevated by lifting upon the lever since said plunger and the adjunctive parts are counterbalanced by the weight 30 in the manner stated.

Having thus described the invention, what is claimed as new is:

1. In a machine for lining ladles, the combination of a ladle support, a ladle holder comprising complemental parts having pivotal connection at one end and separable at the opposite end, and having integral lugs projected from the free ends of the sections or parts of the holder, and means cooperating with said lugs to draw the sections of the holder together for securing the ladle when placed in position.

2. In a machine for lining ladles, the combination of a ladle support, a ladle holder comprising compleinental parts having pivotal connection at one end and separable at the opposite end, lugs projected from the free ends of the sections orparts of the holder, and a clamp cooperating with said lugs for drawing the sections together, said clamp having adjustable connection With one of the lugs and having a cam lever cooperating with the other lug.

3. In a machine for lining ladles, the combination of a ladle support, a ladle holder comprising complemental parts having pivotal connection at one end and separable at the opposite end, lugs projected from the free ends of thesections or parts of the holder, a clamp, means for pivotally and adjustably connecting the clamp with one of said lugs, and a cam lever forming a part of the clamp and cooperating with the other lu 1. In combination, a support, aplunger mounted upon the sup ort to receive both rotary and longitudina movement, a yoke having swivel connection with the plunger and having opposite lugs, a bracket proj ected from the support and having opposite flanges inclined to the horizontal, seats at intervals in the length of the flanges, other seats below the said flanges, and a forked lever embracing opposite sides of the yoke and bracket and having grooves in the inner faces of the fork members to receive the lugs of the aforesaid yoke, and having studs to engage under the flanges of the said bracket and to fit in any of the said selected seats.

In testimony whereof we afliX our signatures in presence of two witnesses.

CHARLES BARTHOLOMAI. [11. 5.] WILLIAM G. STOUKHAM. [1,. s] GEORGE R. DEMING. [1. s. l

Witnesses:

CHARLES J. OONREY, GEO. W. BERRY. 

